be used to = be accustomed to (привыкнуть) = be familiar with
be used to
used to do
Used to refers to actions and situations in the past which no longer happen or are no longer true. It always refers to the past:
She used to sing in a choir, but she gave it up. (She sang, but she doesn’t sing any more)
Be used to means ‘be accustomed to’ or ‘be familiar with’. It can refer to the past, present or future. We follow be used to with a noun phrase, a pronoun or the -ing form of a verb:
I work in a hospital, so I’m used to long hours. (I am accustomed to/familiar with long hours.)
She lives in a very small village and hates traffic. She’s not used to it.
He was a salesman, so he was used to travelling up and down the country. (He was accustomed to/was familiar with travelling.)
We can also say get used to or (more formally) become used to:
University is very different from school, but don’t worry. You’ll soon get used to it. (or, more formally, You’ll soon become used to it.)